Automatic hose nozzle



G. LENGACHER AUTOMATIC HOSE NOZZLE Filed Nov. '7, 1938 ZLO/ZQC (lO/TINVENTOR BY 4r ATTORNEYS Patented June 25, 1940 UNITED 'res TENT oFFicE 1 Cla-ima This invention relates to automatic hose nozzles and has for an object to provide a device of this character in whichthe trigger is swivelly mounted on the valve stem so that regardless of the position in which the nozzle is thrown down upon the ground, the trigger is within convenient reach when the nozzle is picked up and furthermore the hose need never be twisted when washing under fenders since the trigger readily turns on thevalve stem.

A further object is to provide a device of this character in which the shape of the tip end of the valve stem and the shape of the bore of the nozzle barrel at the tip permits of the water from the hose being so controlled that it will issue either in the form of a `coarse spray, ne spray, or in a solid stream as desired. j

A further object of the invention is to provide a novel adjusting nut which is threaded upon a tube carried by the swivel connection between the valve stem and the trigger to adjustably control the throw of the trigger.

A further object is to provide a device of this character which will be formed of a few strong simple and durable parts, which will be inexpensive to manufacture, and which will not easily get out of order. l

With the above and'other objects in view the invention consists of certain `novel details of construction and combinations of parts hereinafter fully described and claimed, it being understood that various modications may be `resorted to within the scope of the appended claim without departing from the spirit or sacrincing any of the advantages of the invention.

In the accompanying drawing forming part of this specication,

Figure 1 is a longitudinal sectional view of an automatic hose nozzle constructed in accordance with the invention.

Figure 2 is a cross sectional view of the hose nozzle taken on the line 2-2 of Figure l.

Figure 3 is a longitudinal sectional view of the valve stem detached from the nozzle.

Referring now to the drawing in which like characters of reference designate similar parts in the vario-us views, Il) designates the barrel of the nozzle the upper end of whichYV is formed with a flared portion II at the inner end of which the bore of the nozzle is reduced to provide an annular valve seat I2. Inwardly of the valve seat the bore is uniformly enlarged to provide a cylindrical chamber I3 and inwardly of the chamber is flared oppositely to the nozzle to provide a funnel shaped chamber I4 through v which the Water is directed into the chamber E3 and through the opening I5 in the valveseat. Inwardly of the funnelshaped chamber I! the bore of the barrel isuniformly enlarged to the extreme inner end thereof. The inner end of the barrel is externally threaded as shown at I6 and` is provided outwardly of the threadsA with a shoulder I1. A

' Mounted within the barrel is a tubular valve stem 4I8` having an integral interiorly threaded hose tting I9 at the inner end into which the fitting on the end of a hosemay be conveniently screwed.` The valve stem is slidably fitted in the barrel and is secured water tight thereto through the medium of a gland nut 2l] which is threaded onto the threaded inner end of the barrel I0 and confines a packing washer 2I and a metal washer 22.

The valve stem is provided with a circumferential groove 23 in which is confined a washer 24 which is received in a shouldered recess 25 formed in a thick washer 26 which is sleeved on the valve stem.

A helical spring 2l is sleeved on the valve stem and is conned under compression between the thick washer 25 and the thin washer 22, both washers being of metal to reduce wear when the barrel is slid longitudinally of the valve stem to regulateiiow of water as will presently appear.

Outwardly of the circumferential groove 25 the valve stem is provided at diametrically opposite points with pear-shaped orifices 28 through which the water may ow into the funnel shaped chamber lli in the bore of the barrel. The valve stem is of less external diameter than the diameter of the cylindrical chamber I3 and within the chamber is uniformly reduced and merges into a reduced beveled solid valve 29 adapted to seat against a conical surface 30 formed in the valve seat I2 and projects from the tip end of the 4valve a cone 3| which is smaller in diameter than the opening I5 in the valve seat I2.

When the valve stem is in the position shown in Figure l the flow of water will be cut on but by shifting the barrel I0 outwardly upon the valve stem I8 against the tension of the spring 2l until the cone is more or less within the opening I5 in the valve seat, the character of vthe stream of water can be modied so as to issue from the nozzle in the form of coarse spray, ne spray, or a solid stream.

For shifting the barrel I0 a trigger is provided comprising a lever 32 which terminates in a fork l33 which slidably embraces the valve stem I8.

The lever is pivoted, as shown at 34, upon the free end of a right angular fulcrum arm 35 which terminates in a ring 36 disposed in axial alignment with the fork 33 and adapted to swivelly encircle the valve stem I8. The lever 32 is directed at an angle at the free end to provide a securing means'ior a grip 38 formed from sheet metal and shaped to embrace the arm 31 and lever 32. A pivot pin 39 is passed through the grip and through the free end of the lever. Ill'he grip is provided with a pair of arms 4I), best shown in Figure 2, which are pivotally engaged with the ends of the pivot pin 34 of the lever 32.' When the grip 38 is depressed toward the hose the forked end 33 thereof will bear against the gland nut 20 and force the barrel IIJ of the nozzle out- Wardly. When the grip is released the spring 21 `will return the barrel to initial position.

By virtue of the triggerbeing swivelly mounted on the valve stem through the medium of the forked end 33 of the lever and the ring 3%6 of the fulcrum arm 35, the hose need never be twisted in washing underneath fenders since the trigger will swivel .freely on the valve stem. Furthermore, regardless of what position the hose is dropped upon the ground the trigger will always be within convenient reach of the fingers to be easily manipulated when the nozzle is raised from the ground.

For adjusting the throwv of thev trigger the ring 36 is provided with an externally threaded nipple lI which extends longitudinally of the valve stem I 8. An adjusting nut 42 is threadedly engaged on the nipple. By adjusting the nut longitudinally of the nipple the forked end 33 ofthe lever may be initially disposed at various adjusted positions longitudinally on the valve stem I8 to control movement of the barrel III under urge of the spring 21, to initial position after each actuation, and at the same time control movement of the forked end of the lever upon the valve stem under urge of the spring.

Since a description of the operation has been given as a description of the parts progressed it is thought that the invention will be fully understood Without further explanation.

What is claimed is:

In an automatic hose nozzle, a'tubular stem forming a valve, a barrel slidably mounted on the stem having a valve seat, a spring sleeved on the valve stem and engaging the barrel and the stem to normally hold the valve seated, an angular fulcrum arm having legs extending at a right angle relatively to each other, a ring on one leg swivelly receiving said stem, a lever pivoted on the other leg terminating in a fork embracing the stem and engaging the barrel to move the barrel against the tension of the spring to unseat the valve, a tubular exteriorly threaded nipple alined with and formed integral with the ring of thefulcrum arm and swivelly receivingv said stem, and an adjusting nut threadedly engaged with the nipple between the fork of the lever and the ring and bearing against said fork to limit throw of the lever.

GODFREY LEN GACHER. 

